It's BOONDOGGING also known as side drifting and still common and effective on the Skagit and many larger rivers. What Fishbreath is doing is known as anchor dragging and is very noisy under water (remember sound travels much more effeciently under water that in air). Anchor dragging is also destructive to the riverbed. Use your oars, kicker or an electric motor to keep your bow upstream and in the fishes traveling lanes